21334131030 has 16 divisors (see below), whose sum is σ = 51201914544. Its totient is φ = 5689101600.

The previous prime is 21334131029. The next prime is 21334131037. The reversal of 21334131030 is 3013143312.

It is a junction number, because it is equal to n+sod(n) for n = 21334130988 and 21334131006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21334131037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355568821 + ... + 355568880.

It is an arithmetic number, because the mean of its divisors is an integer number (3200119659).

Almost surely, 2^21334131030 is an apocalyptic number.

21334131030 is an abundant number, since it is smaller than the sum of its proper divisors (29867783514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21334131030 is a wasteful number, since it uses less digits than its factorization.

21334131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711137711.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21334131030 its reverse (3013143312), we get a palindrome (24347274342).

The spelling of 21334131030 in words is "twenty-one billion, three hundred thirty-four million, one hundred thirty-one thousand, thirty".